Groot

"Groot" is an anthropomorphic tree-like alien creature.

Groot's first appearance was in the comic book "Tales to Astonish #13 (1960)"

Trivia

 * When he was imprisoned by the scientists of Halfworld, he was identified as "Subject 27Q99"
 * Groot was previously a king.
 * His vocabulary consists solely of the words "I AM GROOT", excluding the moment in the movie "Guardians of the Galaxy" where he says to Rocket Raccoon "We are Groot."